Ad Formats

Banner Ad — Definition & Explanation

Standard display advertising units that appear on websites in defined positions. IAB standard banner sizes include 728x90 (leaderboard), 300x250 (medium rectangle), 300x600 (half page), and 320x50 (mobile banner). Banners are the most widely implemented digital ad format.

How Banner Ad Works

Banner ads are served by ad servers or SSPs into defined HTML containers using JavaScript ad tags or Prebid.js. Creative is delivered as HTML5, image, or rich media. Impression tracking fires when the creative loads in the container.

Why Banner Ad Matters for Publishers

Banner ads form the foundation of most publisher monetization strategies. Properly implemented IAB standard banners maximize demand coverage and fill rates from the broadest set of advertisers.

Frequently Asked Questions

Which banner sizes generate the highest CPMs?

300x600 half-page units typically command the highest display CPMs due to large creative canvas. 300x250 has the highest demand coverage. 728x90 leaderboard is standard for desktop above-fold.

Are banner ads declining?

Standard banner display CPMs remain lower than video, but banner advertising continues to represent the majority of publisher inventory volume and total revenue.

Does Stellor Media monetize banner ads?

Yes. Banner ad monetization is the core of Stellor Media's publisher offering, with competitive demand across all IAB standard sizes.

Related Terms

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